2 files changed, 19 insertions, 1 deletions
diff --git a/core/src/ch/asynk/rustanddust/engine/util/Collection.java b/core/src/ch/asynk/rustanddust/engine/util/Collection.java
new file mode 100644
index 0000000..c768d45
--- /dev/null
+++ b/core/src/ch/asynk/rustanddust/engine/util/Collection.java
@@ -0,0 +1,18 @@
+package ch.asynk.rustanddust.engine.util;
+
+import java.util.Iterator;
+
+public interface Collection<E> extends Iterator, Iterable<E>
+{
+    public void clear();
+
+    public int size();
+
+    public boolean isEmpty();
+
+    public E get(int idx);
+
+    public boolean add(E e);
+
+    // public boolean contains(E e);
+}
diff --git a/core/src/ch/asynk/rustanddust/engine/util/IterableArray.java b/core/src/ch/asynk/rustanddust/engine/util/IterableArray.java
index f310a60..baa58d9 100644
--- a/core/src/ch/asynk/rustanddust/engine/util/IterableArray.java
+++ b/core/src/ch/asynk/rustanddust/engine/util/IterableArray.java
@@ -3,7 +3,7 @@ package ch.asynk.rustanddust.engine.util;
 import java.util.ArrayList;
 import java.util.Iterator;
 
-public class IterableArray<E> extends ArrayList<E> implements Iterator, Iterable<E>
+public class IterableArray<E> extends ArrayList<E> implements Collection<E>
 {
     private int i;
     private int s;